Proof

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Question 54

$n\,$ is an integer and $k\,$ is an integer constant. Prove algebraically that the sum of $(n + k) (n + k - 1)$ and $n + k$ is always a square number.

[2]

Proof

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Question 54

$n\,$ is an integer and $k\,$ is an integer constant. Prove algebraically that the sum of $(n + k) (n + k - 1)$ and $n + k$ is always a square number.

[2]

Proof

Question 54

Markscheme

Proof

Question 54

Markscheme

Proof

Question 54

Proof Questions

Proof

Question 54

Proof Questions